Original The Quad Electrostatic Loudspeaker ESL57 Instruction Book

Original The Quad Electrostatic Loudspeaker Instruction Book for the ESL57 speaker. It dates to 1962.

Published by The Acoustical Manufacturing Co. Ltd, Huntingdon, UK: better known as "Quad."

The Red paper cover is in good condition, with a few edge creases and slight fading.

It comprises 12 pages, which are in good condition with some ink transfer between pages.

Approximate size:

• Width: 21.5 cm 
  
• Height: 14cm
• Depth: 2mm

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